Tree Planting with Pittsburgh Permaculture

Over the summer, I had an interesting email; Catherine from Ireland was visiting Pittsburgh and wanted to help out a bit, here is what she wrote about her experience.

-Troy

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Tree planting with Pittsburgh Permaculture

After reading an article on ecological travel and responses to peak oil, I decided in 2008 to take a no-fly pledge, which had me grounded for a year. In truth, I found it difficult not to fly and this was accentuated by living on a small island on the edge of Europe. No excuses, however; but I did wonder if an alternative, if even a minor approach was possible – in comparison to the option of not flying at all.

In 2010, I accompanied my boyfriend on a visit to Pennsylvania.  Coming to terms with the realisation of flying such a long distance for holiday purposes in addition to the desire to do something different, I decided to find a willing group in Pittsburgh that I could work with for a day.  I wanted to engage differently with the city, rather than do the more predictable things that tourists get up to; I wanted to give, to offer something – aside from the usual outcomes of commercial transactions. I also wanted to receive… I wanted to interact with people who were actively committed to addressing the ecological and related food challenges we face. I wanted to learn, to be inspired by an energy that I could take back to Dublin and apply to similar ideas and projects.

‘Google’ introduced me to Pittsburgh Permaculture and from here; I made contact with Troy with the suggestion of purchasing and planting edible fruit bearing natives for an active project. When we eventually met, Troy showed me around his own urban garden. I was impressed to see the diversity of vegetables and fruits growing in the space available. We then visited the local nursery; Troy informing me what species would suit best according to the climate, local soils and the objectives of the project. We purchased young pawpaws, elderberries and hazelnut trees; these species being natives. The chosen site for planting was the Hazelwood YMCA, adjacent to the Hazelwood Edible Forest.  Inspiring chat was shared over digging, planting, securing the trees, as members of Pittsburgh Permaculture helped out with the process. In the short space of an afternoon, I learnt about the progressive aims of the group, native species, and about the process of planting itself (bearing in mind that I’ve no great experience of this). The afternoon ended with a tour of the edible forest, albeit in its infant stages, adjacent to the YMCA site, where the permaculture group have planted fruit trees, vegetables and herbs in an open space alongside a busy road. Troy explained the group’s ambitions for the edible forest; I was enthused by how the group were actively engaging in the urban space to its full potential, subsequently reminding me of similar spaces of land in my own city, Dublin, that lie in waste yet offer much potential for sustainable and ecological-oriented community development.

In 2009, I had done something similar in Denver for a group called Urbiculture Farms (read more about the experience here: http://www.urbiculturefarms.com/2/post/2009/12/first-post.html). It’s very easy to just book a flight and travel, without giving much consideration for the way we travel, what we do when we get there and the wider ecological and economic implications. Ideally, a commitment to not fly if possible is the preferred option; I admit that some work is needed before I can make a full commitment. However, in moving in the right direction, I can choose to create opportunities that allow me to engage with the local community in a way that benefits them socially, ecologically and economically. Thanks to Pittsburgh Permaculture for allowing me to realise this.

Catherine Devitt

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Troy getting a hole ready for planting.

Troy getting a hole ready for planting.

Catherine and Juliette getting the pawpaw in the hole.

Catherine and Juliette getting the pawpaw in the hole.

Catherine planting a pawpaw.

Catherine planting a pawpaw.

Catherine and Troy making cages for the trees.

Catherine and Troy making cages for the trees.

A proud young pawpaw.

A proud young pawpaw.

Wrapping up and watering in.

Wrapping up and watering in.

Rocks in the Garden

I am exploring the use of large rocks strategically spread throughout the garden to aide in the thawing process in spring. In the warm months, and in the winter when the rocks aren’t covered in snow, rocks buffer the diurnal temperature swings. That is to say they make the micro-climate around them a more constant temperature throughout the night and day.

They do this by absorbing heat throughout the day and slowly releasing it at night. This is an example of using the concept of thermal mass in the garden. Sepp Holzer successfully uses this technique to grow lemons and limes in the Austrian Alps.

Something that I find interesting and that I have been looking at in rock outcroppings and also cemeteries is how the vertical face of a rock, if facing south (towards the sun in our northern hemisphere), induces melt faster by providing a dark energy absorbent mass. Once the white of the snow is gone the ground warms much more rapidly than it would have in a flat garden space.

Something that would be worth experimenting with a little is whether a large rock with the majority of its mass buried  (picture an iceberg, with the majority of the mass underwater) will act as a geothermal syphon and buffer the temperatures of the earth below and the weather above. Essentially, if this were the case, we would not only be getting energy from the sun and storage from the rock, but we would also be pulling energy up in the cold months and pushing it down in the warm parts of the year with the rock acting as a conduit.

Additionally, rocks and gravel are the primary source of minerals in the soil and break down as your plants need them.

These are just a few things to consider when you finally dig that clunker out of your vegetable beds and don’t know what to do with it.

-Troy

David Holmgren’s Insights

I have put together some interviews of David Holmgren, the cofounder of permaculture. I wouldn’t suggest watching them straight through, but it is worth watching/listening to them very intentionally. I have grouped the multi-segment videos together. I hope you enjoy them. Continue reading David Holmgren’s Insights